Vasari.. Vasari fleet is best with full upgrades and you can sit behind your orkuli to build up well, both Loyalist and Rebel is good for your criteria. Old game, maybe Vasari is still good for this, though you don't have the Orkulus stabase there to protect you... Or Advent (Loyalist in Rebellion) with Iconus Guardians and lots of bombers and illuminators or heavy cruisers and of course your Coronata leading them along with some nice capital ships for synergy.
